Objects not receiving stencilshadows

[shogun]

Hello,

I'm sorry, but my problem with objects which shouldn't receive shadows is still existent. So I tried to modify Irrlicht directly by just adding a second renderpass for solid objects (after the one which draws the shadowvolumes!) and succeded somehow. Of course I had to add a "bool IsShadowReceiver" to the ISceneNode, so I have to say "node->SetShadowReceiver(true)" if I want my object to receive shadows, otherwise it's drawn after the shadow volumes.

As I'm not a real programmer my solution has still problems: the shadows now have some strange flickering (a screenshot here wouldn't suffice, one can see it only in motion). Perhaps somebody who works at the engine knows why.

Regards,
shogun

[bull]

You should post your modification so everyone could see what is wrong.

[shogun]

You're right ...

Here's my modificated CSceneManager.cpp:

Code: Select all

// ...
u32 CSceneManager::registerNodeForRendering(ISceneNode* node, E_SCENE_NODE_RENDER_PASS time)
{
	// ...
	switch(time)
	{
		// ...
		case ESNRP_SOLID:
		if (!isCulled(node))
		{
			if (node->isShadowReceiver())
				SolidShadowReceiverNodeList.push_back( node );
			else
				SolidNonReceiverNodeList.push_back( node );
			taken = 1;
		}
		break;

	// ...

	case ESNRP_AUTOMATIC:
		if (!isCulled(node))
		{
			// ...

			// not transparent, register as solid
			if ( 0 == taken )
			{
				if (node->isShadowReceiver())
					SolidShadowReceiverNodeList.push_back( node );
				else
					SolidNonReceiverNodeList.push_back( node );

				taken = 1;
			}
		}
		break;

	// ... etc. ...



void CSceneManager::drawAll()
{
	// ...

	// render default objects, receiving shadows
	{
		CurrentRendertime = ESNRP_SOLID;
		SolidShadowReceiverNodeList.sort(); // sort by textures

		for (i=0; i<SolidShadowReceiverNodeList.size(); ++i)
			SolidShadowReceiverNodeList[i].node->render();

		Parameters.setAttribute ( "drawn", (s32) SolidShadowReceiverNodeList.size () );

		SolidShadowReceiverNodeList.set_used(0);
	}

	// render shadows
	{
		CurrentRendertime = ESNRP_SHADOW;
		for (i=0; i<ShadowNodeList.size(); ++i)
			ShadowNodeList[i]->render();

		if (!ShadowNodeList.empty())
			Driver->drawStencilShadow(true,ShadowColor, ShadowColor,
				ShadowColor, ShadowColor);

		ShadowNodeList.set_used(0);
	}

	// render default objects, not receiving shadows
	{
		CurrentRendertime = ESNRP_SOLID;
		SolidNonReceiverNodeList.sort(); // sort by textures

		for (i=0; i<SolidNonReceiverNodeList.size(); ++i)
			SolidNonReceiverNodeList[i].node->render();

		Parameters.setAttribute ( "drawn", (s32) SolidNonReceiverNodeList.size () );

		SolidNonReceiverNodeList.set_used(0);
	}

	// ... etc. ...

That's it. "SolidShadowReceiverNodeList" and "SolidNonReceiverNodeList" are just two core::array<DefaultNodeEntry> Arrays, the old "SolidNodeList" is deleted. "IsShadowReceiver" in includes\ISceneNode.h works like IsVisible, so it's not needed to post it.